[GRASS-user] Scientific Comparison between GRASS and Proprietary Remote Sensing/GIS Software

[Jan Hartmann]

Hi Firman,

Could you send us a reference to your paper?

Jan Hartmann

Dr. J. Hartmann
Department of Geography
University of Amsterdam

Carlos "Guâno" Grohmann wrote:
> Hello Firman,
> 
> My colleague an I  just submitted a paper about a comparison between
> GRASS and ArcGIS, using morphometric maps as a base. In general terms,
> they both give similar results, except when there was an interpolation
> with clustered data (points clustered along streamlines but with
> clusters far from each other). In this case, GRASS produced a very
> nice result, while ArcGIS made a really bad interpolation.
> 
> Other the one hand, I guess some things are easier to do in some
> proprietary software, most of them have better map-producing
> capabilities than GRASS and GRASS lacks some more interactive tools
> (like interactive histogram stretching, color table manipulation for
> vector maps etc).
> 
> On the other hand, you can do things in GRASS you couldn't even think
> about in proprietary GIS. Consider how powerful r.mapcalc is, see the
> beauty of a NVIZ session (all my ArcGIS friends are impressed with
> NVIZ), or even how easy it is to adapt some piece of code to suit your
> needs (I had to do that, I needed larger neighborhoods than
> r.neighbors default maximum size - 25 - so I just changed in the code
> and recompiled).
> 
> my two cents
> 
> Carlos
> 
> 
> 
> 
> 
> On 7/9/07, Firman Hadi <firman.hadi at crs.itb.ac.id> wrote:
>> Dear all,
>>
>> One week ago I had a discussion with someone who is expert in remote
>> sensing.
>> It was a really nice discussion though we have a different perspective
>> in using software.
>> I prefer to use GRASS, because it's an open source software while he
>> prefer to use
>> proprietary software. He believed that GRASS can't do some tasks that
>> proprietary softwares do.
>> He thought that GRASS is not mature enough to be used. He asked me some
>> prove that the results from GRASS is the same with proprietary software.
>> For me, it will be better if I bring actual comparison between GRASS and
>> proprietary software, though maybe it will take some time.
>> Is there any link or arguments to give an accurate explanation for such
>> kind of people?
>> Thanks.
>>
>> -- 
>> Firman Hadi,
>> Center for Remote Sensing - ITB
>> Labtek IXC, 3rd Floor
>> Jl. Ganesha No. 10
>> Bandung - INDONESIA
>> http://crs.itb.ac.id
>> Blog: http://jalmiburung.wordpress.com
>>
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> 
>